Beer-pump



(No Model.)

. J. MOREHEAD.

BEER PUMP. I No. 465.943. Patented Dec. 29, 1891.

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pvitwaooeo/ aa weufoz 551 40 (l/Horne UNITED STATES PATENT OFFICE.-

JOHN MOREI-IEAD, OF DETROIT, MICHIGAN.

BEER-PUMP.

SPECIFICATION forming part of Letters Patent No. 465,943, dated December 29, 1891..

Application filed February '7, 1891- Serial No. 380,605. (No model.)

" this specification.

My present invention relates to certain new and useful improvements in an automatic beer-pump; and it consists of the devices and and appliances hereinafter specified and claimed, and illustrated in the accompanying drawings, in which- Figure 1 is a side elevation embodying my invention. Fig. 2 is a vertical cross-section on theline w to, Fig. 1. Fig. 3 is a detail view of the construction of the regulator. Fig. 4 is a separate view of the yoke and valve located in the pressure-regulator. Fig. 5 isv a detail View of the construction of the checkvalve in the air-exit pipe.

Myinvention is more particularly designed,

as an improvement on a similar device for which an application for United States Letters Patent is now pending, Serial No. 341,532, filed February 24, 1890. a

I carry out my invention as follows:

A represents a tilting chamber supported at one side, its center of gravity upon a waterinlet pipe 13, said pipe engaged with a tubular rocking shaft 0, journaled at one end upon a support D, as shown at D, and at the other end in a stuffing-box 0' upon a city supplypipe 0 The shaft 0 communicates thus with the pipe B and with a city water-supply pipe 0 The end of the pipe 0 opposite the stuffing-box is closed, as shown at 0 Within the chamber the support B preferably terminates with a cap I? to throw the water laterally as it enters.

E denotes any suitable cut-off valve located in the supply-pipe C and arranged to open when the chamber A is in normal condition, so as to admit water thereinto, and to close when the chamber is tilted to prevent the admission of water into thechamh'er while it is discharging the water accumulated therein. To this end the valve-stem e is engaged with a weighted arm E, the free end of which rests upon a bar F at the rear end of the chamber A. Said bar may be constructed as a crankshaft engagediu a socket F, in which it may be adjusted to any desired position to control the movement of the arm E and held in a given position by a set-screw f. As so arranged the valve is closed by the descent of the rear end of the weighted arm when the chamber tilts and is raised when the chamber returns to its normal position.

The chamberAis provided with a weighted arm A. I.

G denotes an air-pipe leading from the interior of the chamber A, at the top thereof, to the beer-keg.

H is any suitable check-valve for oontrolling the passage of air from the chamber A through the air-pipe. By this construction it is apparent that when the chamber tilts the valve H closes, the back-pressure of the air in the'pipe G effeotuallyholding the valve closed until the chamber tilts again anda predominate airpressure is secured in the ch amber by the water-pressu re entering thereinto. 1

The chamber A is provided with an outletorifice A and a valve A controls the dis-.

charge of water therefrom. As shown, the valve-stem a projectsbeneath the chamber and strikes the base of a discharge-pan I, located beneath the pump, when the chamber tilts, thereby opening the valve, which seats J is the case, provided with tubular arms j j, connected with the supply-pipe C the arm j admitting the water into the case and the arm j discharging it therefrom. The arm 7' islocated above the arm j and is constructed with a valve-seat 9' at the point of the outletorificej through which the water passes from the arm j into the chamber J of the regulator.

J 3 is the valve, located in a yoke J engaged at its upper end upon the stem K of a diaphragm K',located over the top of the chamber J To this end said stem and yoke may have a screw-threaded engagement the one with the other, as shown at 76. The top of the yoke rides over the inner end of the arm j, in which end the lower extremity of the stem K is seated, as shown at Said stem is seated at its lower end in a socket j on the armj, the socket forming a guide for the stem as the diaphragm is moved.

In constructing the regulator J it will be convenient to leave the case J open at the base in order to form the valve-seatj the said opening being closed by a plug J The surface of the valve J it should be understood, has a small area, while the surface of the diaphragm K has a comparatively large area. a

J 6 is a cap covering the chamber J 2 when the valves located therein are in place. Upon the upper end of the stem K is located a spring it the tension of which is regulated by a screw K having a threaded engagement in the cap J The diaphragm K may consist of any suitable material, as of a flexible piece of rubber.

The action of the pressure-regulator is as follows: The tension of the spring 70 is adjucted according to the air-pressure desired. When the pressure in the tilting chamber is lower than the pressure of the said spring, it is evident that the spring will force the diaphragm downward, carrying with it the yoke J" and opening the valve J allowing the water freely to enter the chamber J 2 and pass into the chamber A. WVhen, however, the pressure in the chamber A is greater than that of the spring R the back-pressure upon the diaphragm K will lift it, seating the valve J 3 and cutting ofi the entrance of water into the chamber until the pressure in the chamber A is diminished.

Besides the check-valve II, controlling the passage of air from the chamber A, I also provide an additional inlet and relief valve L, which may be located in a branch pipe M, communicating with the chamber through the coupling between the pipe G and the chamber and provided with an air-inlet orifice m. This construction utilizes the one opening into the chamber for the air exitand inlet and enables the valve L to be made as an ordinary plug-valve or piston, which is raised by the action of the lever when the chamber is tilted and by the pressure of the air against its lower end when the pressure within the chamber becomes so great as to require the valve to act as a relief-valve. The valve-stem L, as shown, is engaged with a weighted lever-arm L which at one end is connected with a rod L engaged upon the discharge-pan I. The said arm is fulcrum ed upon a standard L hen the chamber tilts, it is evident the valve is lifted, opening the orifice on, allowing air to enter the chamber as the water is discharged. This valve, however, not only admits air into the chamber, but also acts as a relief or safety valve. By means of the weight on the arm L the pressure of the valve can be adjusted as desired. Should the pressure within the chamber become too great, it will overcome the pressure of the valve and allow the air to escape. As I contemplate the construction of the chamher A from sheet metal, this safety provision becomes essential. The construction of the pump is thus simple, economical, and efficient and not liable to get out of order.

The operation of the device as a whole will now be readily understood. ater entering the chamber A condenses the air therein above the water until the weight of the accumulated water overcomes the weight upon the arm A, forcing the air under pressure out through the air-pipe. \Vhen the chamber tilts, the check-valve at the top closes and prevents the air from passing back through the pipe into the chamber. On the return of the chamber A the action is automatically repeated. The chamber A is provided with a leg A" to limit its return.

lVhat I claim as my invention is- 1. In a beer-pump, the combination, with two supports, one of which communicates with a supply-pipe and is provided with a cut-oiif valve, a channeled rock-shaft j ournaled in the chamber, a water-outlet at the bottom, an arm connected with the stem of the cut-off valve, and an adjustable stop at the rear of the chamber, engaging with the free end of said arm and adapted to regulate the movement of the same, substantially as described.

2. In a beer-pump, the combination, with two supports, one of which communicates with a supply-pipe and is provided with a cut-oil valve, a tilting chamber upon said supports and communicating with the supply -pipe thereby, an air-outlet at the top and a wateroutlet at the bottom of the chamber, an arm connected with the stem of the cut-off valve and provided with. a weight, a bar at the rear end of the chamber, engaging with the free end of the arm, and a set-screw for holding the bar in its desired position for adjusting the movement of the arm, substantially as;

described.

3. In a beer-pump, the combination, with a tilting chamber provided with a water inlet and outlet, and an air-outlet at the top of the chamber, adapted to communicate with the beer-vessel, of a relief and safety device consecured to a support at one end and engaging 1o sisting of a pipe having an air-inlet and comwith the opposite end of the lever with its mnnicating with the interior of the chamber free end, substantially as described. through the coupling between the air-outlet In testimony whereof I sign this specifica- 5 and the chamber, a valve within the pipe for tion in the presence of two witnesses.

controlling said inlet, a standard adjacent to JOHN MOREHEAD. the pipe, a lever pivoted in the standard, one Witnesses: end of which is weighted and engages with N. S. WVRIGHT,

the stem of said Valve, and a standard rigidly JOHN F. MILLER. 

